CN208594391U

CN208594391U - A kind of zero-g aerospace dynamical system in washer

Info

Publication number: CN208594391U
Application number: CN201820382378.6U
Authority: CN
Inventors: 高强
Original assignee: Jiangsu Simand Electric Co Ltd
Current assignee: Jiangsu Simand Electric Co Ltd
Priority date: 2018-03-20
Filing date: 2018-03-20
Publication date: 2019-03-12
Anticipated expiration: 2028-03-20

Abstract

The utility model discloses a kind of zero-g aerospace dynamical system in washer, it include: key module, indicator light, buzzer, display module, speed measuring module, over-current detection module, control module, drive module, power plant module and several prominent axis, wherein the key module, indicator light, buzzer, display module, speed measuring module and over-current detection module are connect with the control module, the control module is connect with the drive module, and the drive module is connect with the power plant module；The inside of washing machine is arranged in a manner of two rows contraposition in the prominent axis, and connect with the power plant module；The power plant module is stepper motor, and the speed measuring module is photoelectric encoder, is coaxially disposed with the stepper motor.The mode of the utility model mechanical presses can carry out anthropomorphic rubbing to clothing in any angle, independent of the scene of gravity, and can reach reasonable washing effect.

Description

A kind of zero-g aerospace dynamical system in washer

Technical field

The utility model relates to washing machine technology fields, particularly relate to a kind of zero-g aerospace washing machine dynamical system System.

Background technique

In the space station epoch, spacefarer is sometimes as long as space needs half a year.Their clothing, which has been worn long, can also make dirty.One Since straight, spacefarer is that space station is transmitted to by cargo ship in the clothes that space is changed clothes, but this freight after all Limited mass that is extremely expensive, and carrying.

Therefore, the inventor of the utility model needs to conceive a kind of new technology, independent of the scene of gravity, and can reach To reasonable washing effect.

Utility model content

The utility model is intended to provide a kind of zero-g aerospace dynamical system in washer, can be in any angle to clothing Anthropomorphic rubbing is carried out, independent of the scene of gravity, and reasonable washing effect can be reached.

In order to solve the above technical problems, the technical solution of the utility model is:

A kind of zero-g aerospace dynamical system in washer, comprising: key module, indicator light, buzzer, display module, survey Fast module, over-current detection module, control module, drive module, power plant module and several prominent axis, wherein the key module, referring to Show that lamp, buzzer, display module, speed measuring module and over-current detection module are connect with the control module, the control module It is connect with the drive module, the drive module is connect with the power plant module；The prominent axis is set in a manner of two rows contraposition It sets in the inside of washing machine, and is connect with the power plant module；The power plant module is stepper motor, and the speed measuring module is light Photoelectric coder is coaxially disposed with the stepper motor.

Preferably, the drive module includes driving chip U1, diode D0, diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, diode D7, wherein the crus secunda of the driving chip U1 is respectively with described two The cathode connection of the anode, diode D4 of pole pipe D0；The third foot of the driving chip U1 respectively with the diode D1 just The cathode connection of pole, diode D5；The 13rd foot of driving chip U1 anode, the diode with the diode D2 respectively The cathode of D6 connects；The 14th foot of the driving chip U1 cathode with the anode of the diode D3, diode D7 respectively Connection.

Preferably, the over-current detection module includes operational amplifier U1A, operational amplifier U1B, resistance R10, resistance R11, resistance R12, resistance R15, wherein one end of the resistance R10 is connect with the first foot of driving chip U1, the other end and institute State the crus secunda connection of operational amplifier U1A；The third foot and the 4th of the operational amplifier U1A is arranged in the resistance R11 Between foot, the resistance R12 is arranged between the first foot and crus secunda of the operational amplifier U1A；The operational amplifier The first foot of U1A is connect with the 4th foot of the operational amplifier U1B, and the resistance R12 is arranged in the operational amplifier U1B Crus secunda and third foot between.

Preferably, the control module is DSP2808 chip.

Preferably, the driving chip U1 is L298N driving chip.

Preferably, the operational amplifier U1A is LF353D operational amplifier.

Preferably, the operational amplifier U1B is LM339AD operational amplifier.

Preferably, the stepper motor uses 45ZY24-25-N type stepper motor.

Preferably, the display module is LCD12864 liquid crystal display.

By adopting the above technical scheme, the utility model include at least it is following the utility model has the advantages that

Zero-g aerospace dynamical system in washer described in the utility model, when washing machine works, above and below axis of dashing forward Effect is rubbed in the mobile impact for realizing clothing, and independent of gravity, institute is dynamic to drive this squeeze force from stepper motor Dynamic prominent axis.When laundry, prominent axis is alternately stretched out and is withdrawn up and down, and clothing clip receives extruding and rubbing among upper and lower axis of dashing forward Strength, to realize dirty separation.That is the mode of mechanical presses can carry out anthropomorphic rubbing to clothing in any angle, no Dependent on the scene of gravity, and reasonable washing effect can be reached.I.e. the utility model provides firmly for the realization of above-mentioned function Support on part.

Detailed description of the invention

Fig. 1 is the electrical schematic diagram of zero-g aerospace dynamical system in washer described in the utility model；

Fig. 2 is the scheme of installation of prominent axis described in the utility model；

Fig. 3 is the operation schematic diagram of prominent axis described in the utility model；

Fig. 4 is the circuit diagram of drive module described in the utility model；

Fig. 5 is the circuit diagram of key module described in the utility model；

Fig. 6 is the circuit diagram of over-current detection module described in the utility model；

Fig. 7 is the circuit diagram of speed measuring module described in the utility model.

Wherein: 1. prominent axis, 2. door of washing machine.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figures 1 to 7, a kind of zero-g aerospace dynamical system in washer to meet the utility model, comprising: press Key module, indicator light, buzzer, display module, speed measuring module, over-current detection module, control module, drive module, power mould Block and several prominent axis 1, wherein the key module, indicator light, buzzer, display module, speed measuring module and over-current detection module It is connect with the control module, the control module is connect with the drive module, the drive module and the power mould Block connection；The inside of washing machine is arranged in the prominent axis 1 in a manner of two rows of contrapositions, and (preferably, two rows of prominent axis 1 are being located at laundry The two sides of gate 2 are symmetrical arranged), and connect with the power plant module；The power plant module is stepper motor, the speed measuring module For photoelectric encoder, it is coaxially disposed with the stepper motor.

Preferably, the control module is DSP2808 chip.

Preferably, the driving chip U1 is L298N driving chip.

Preferably, the operational amplifier U1A is LF353D operational amplifier.

Preferably, the operational amplifier U1B is LM339AD operational amplifier.

Preferably, the stepper motor uses 45ZY24-25-N type stepper motor.

Preferably, the display module is LCD12864 liquid crystal display.

The working principle of the utility model is: washing machine internal is made of the prominent axis 1 of two rows contraposition, washing machine work When, realize that effect is rubbed in the impact of clothing by moving up and down for axis 1 of dashing forward, this squeeze force is independent of gravity, Suo Youdong Power is from stepper motor driven prominent axis 1.When laundry, prominent axis 1 is alternately stretched out and is withdrawn up and down, and clothing clip is in upper and lower prominent axis 1 Centre, receives the strength of extruding and rubbing, to realize dirty separation.

Specifically:

1) key module and display module.The module is responsible for responding 5 key-press input signals of washing machine, and utilizes L12864 Liquid crystal display current working status.Wherein, L12864 liquid crystal display start and stop, rotating forward, reversion, acceleration-deceleration.

2) power unit.The module is that whole system rectifies out stable 5V and 24V supply voltage from exchange.

3) motor part.Stepper motor is connect with drive module realizes stable operating.

4) drive module.L298N chip can drive two two-phase electric machines, can also drive a four phase motors, output Voltage reaches as high as 50V, directly can adjust output voltage by power supply；Can signal directly be provided with the I/O port of DSP；And And circuit is simple, use is more convenient.

5) buzzer prompts output par, c.The module completes the alarm prompt of washing machine, in general work, buzzing Device is all by sonorous alarm (such as motor operation time-out).

6) instruction of indicator light, preferably light emitting diode.Washing machine makes different LED lightings under various working conditions To explicitly indicate that the operating condition of washing machine.

Stepper motor uses 45ZY24-25-N type stepper motor, and four phase step motor can divide according to different Channel water mazes For several operating modes:

Four phase lists four are clapped: A-B-C-D；

Four phases double four are clapped: AB-BC-CD-DA；

Four phase lists eight are clapped: A-AB-B-BC-C-CD-D-DA；

Four phases double eight are clapped: AB-ABC-BC-BCD-CD-CDA-DA-DAB.

Assuming that there is four phase ABCD, if be successively individually powered to each phase, " A-B-C-D ", needs are changed within magnetic field rotating one week Xiang Sici, then referred to as four phase lists four are clapped；If be powered simultaneously to two-phase every time, " AB-BC- CD-DA ", then referred to as four Xiang Shuansi It claps；It can also be powered simultaneously to three-phase every time, " ABC-BCD-CDA- DAB "；Single four are clapped and double four bats are used alternatingly, is just claimed For four phase eight beat, such as: " A-AB-B-BC-C- CD-D-DA ", " AB-ABC-BC-BCD-CD-CDA-DA-DAB ", magnetic field is revolved at this time It circles and needs commutation eight times.Double four bats are every time powered simultaneously to multiphase, are clapped with single four comparatively, the time that every phase is powered Long, the electrical power of consumption increases, and the obtained electromagnetic torque of motor is also big.Meanwhile electromagnetic damping can be generated using multi-phase excitation, It can weaken or oscillation-damped phenomenon, so that motor is not likely to produce step-out.Compared with the bat of four phases four, step angle reduces four phase eight beat One times, is conducive to weaken oscillation, improves the carrying load ability of motor.Step motor control system needs following part: wherein Impulse generator be used for generate frequency variation pulse signal；Pulsqe distributor turns pulse signal according to direction control signal Change the loop pulse of certain logical relation into；The loop pulse that power amplifier exports pulsqe distributor amplifies, for controlling The operating of stepper motor processed, these parts can be realized by special circuit.

The drive module of stepper motor drives using inside common motor drive chip L298N comprising 4 channel logics Module.The special purpose driver of a kind of two-phase and four phase motors, that is, include two H bridges high-voltage large current enjoy a double blessing bridge-type driving Device receives standard TTL logic level signal, can drive 46V, 2A motor below.It can receive the Transistor-Transistor Logic level control of standard Signal processed, driving motor have overheating protection function, and the input voltage of logical zero reaches 1.5V.Control of the L298 in controller One stepping motor of lower driving, controller generates the control signal that L298 is needed, to control the motion state of stepper motor.For Prevent the inductance of stator winding from acting on, so that generating overvoltage when current switching, the every phase winding both ends of stepper motor all must be simultaneously Join the Xiao Jite diode for playing afterflow in commutation with day.L298N chip can drive two two-phase electric machines, can also To obtain a four phase motors, output voltage reaches as high as 50V, directly can adjust output voltage by power supply；It can be straight It connects and provides signal with the I/O port of DSP；And circuit is simple, and use is more convenient.

Pin interface explanation:

VSS: chip voltage 5V.

VS: electric moter voltage, maximum can meet 50V, meet motor A+~D+.

GND: connection altogether.

OUT1~OUT4: output end meets motor A-~D-.

EN1, EN2: high level is effective, and EN1, EN2 are respectively the enable end of IN1 and IN2, IN3 and IN4.

IN1~IN4: input terminal, input terminal level and output end level be it is corresponding, meet DSP.

ISENA, ISENB foot are output feedback pins, can be directly grounded in.

4 feet connect supply voltage, and voltage range VIH is+2.5~46V.Electric current is exported up to 2.5A, inductive can be driven negative It carries.The emitter of 1 foot and 15 underfooting pipes individually draws to access current sampling resistor, forms current sensing signal. L298 can drive 2 motor, 2 feet and 3 feet, can connect motor, the hair of 1 foot and 15 underfooting pipes between 13 feet and 14 feet respectively Emitter-base bandgap grading individually draws to access current sampling resistor, forms current sensing signal.5,7,10,12 feet connect input control electricity It is flat, control the positive and negative of motor.The effect of continued flow tube: freewheeling diode is usually the both ends for being connected in parallel on coil, and coil is passing through electricity When stream, induced electromotive force can be generated at its both ends.When the current vanishes, induced electromotive force can generate the original part in circuit anti- To voltage.When backward voltage is higher than the breakdown reverse voltage of original part, original part such as triode can be waited and be damaged.Afterflow two Pole pipe online both ends in parallel, when flowing through the current vanishes in coil, the induced electromotive force that coil generates passes through diode and line It does work and consumes in the circuit that circle is constituted.Clump and protect the safety of other original parts in circuit.

The selection of key module:

Generally there are two types of modes for the connection of keyboard, and one is independent keyboards；One is determinant keyboards.Independent keyboard It is exactly that each key is mutually indepedent, each keyboard connects an input line, determines that key by detecting the level state of input line It presses.The input line of this keyboard is more, and structure is complicated, applies in general to the higher occasion of the less service speed of key.And it goes Column keyboard is made of row and column key intersection, is generally used for the more occasion of key.This secondary design altogether use 5 keys because This uses independent keyboard.Two of them key controls stepper motor acceleration and deceleration respectively, third control stepper motor positive and negative rotation, 4th key is used to open and stop stepper motor work.

Shown in Fig. 5, it is 1K that the circuit composition of this part, which includes: R1, R2, R3, R4, R5 resistance value, is used for pull-up resistor.See Drawing system schematic diagram key part.Assuming that the every 2ms of program does 1 key inspection and display.First by font and data to be shown It is sent to the parallel port of LCD12864, then generates the 1st gating signal, working method needed for showing；It arrives in next 2ms When detect and show from newly.Since 2ms circuits sequentially detection, key can be quickly detected.

The selection of over-current detection module:

As shown in Figure 6, it is over-current detection circuit, it acts as the over-current signals in detection circuit, and it to be made to become low level Pulse signal, so that over-current signal protection circuit be made to play a role.Circuit meets the current feedback interface ISEN A of L298N, then leads to LF353 amplification is crossed, is then compared with predetermined value in LM339, interrupt signal is finally exported to DSP, stops washing machine by instruction Only work.It is assumed hereinafter that over-current signal occurs in main circuit, over-current signal protects circuit by over-current detection.Over-current signal passes through R10 is amplified current signal by the integrating circuit that integrated operational amplifier LF353 and R12 is formed.When amplification current signal warp Crossing resistance R13, (electric current forms pressure difference at R13, so that the operational amplifier LM339 of next step is run, R13 and LM339 Parallel circuit can be regarded as), it is pulse signal that over-current signal passes through the processing of operational amplifier LM339 out.By 5V voltage Circuit with resistance R15 composition is to keep high level when making no overcurrent.Rheostat R14 can be by adjusting its size, Lai Shixian The purpose of multi gear detection, so that it is determined that the specific setting value of reverse overcurrent.Interface where rheostat R14 and the signal into LM339 Interface formation is compared, and the signal for making out keeps low level, it is possible to play the role of multi gear by adjusting R14.

The common source difference channel that LF353 input amplifying stage is made of two P-channel JFET, and use mirror-image constant flow source Load is done to improve gain；It is the electricity being made of emitter follower between input difference amplifying stage and principal voltage amplifying stage Amplifying stage is flowed, for improving the input impedance of principal voltage amplifying stage and the load impedance of common source difference channel；Principal voltage amplification Grade is a simple single-stage common emitter amplifying circuit, in order to guarantee the stability of amplifier, in the output of principal voltage amplifying stage The output end of input difference amplifying stage is held to joined a capacitance compensation network, the diode with compensating electric capacity parallel connection guarantees list The principal voltage amplifying stage that grade common emitter amplifying circuit is constituted does not enter saturation state work；Output current amplifier stage be N PN and The complementary emitter follower that PNP is constituted, the resistance of two 100 Ω are used to stablize the quiescent current of output current amplifier stage, 200 Ω Resistance be used to limit output short circuit current.

The selection of speed measuring module:

Speed measuring module selects photoelectric encoder, as shown in fig. 7, by it and motor coaxle when testing the speed, the speed that it will test Degree passes to DSP by A channel and channel B.

Photoelectric encoder principle:

Photoelectric encoder design photoelectric conversion converts the mechanical geometric displacement on the output shaft to pulse or digital quantity Sensor.Photoelectric encoder is made of grating disc and photoelectric detection system.Grating disc is the equal part on the plectane of certain diameter Open several slots in ground.Since photoelectric code disk is coaxial with motor, when motor rotates, grating disc is synchronized with motor Rotation, the detection device detection through the electronic components such as light emitting diode composition exports several pulse signals, by calculating light per second The number of photoelectric coder output pulse can reflect the revolving speed of current motor.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims

1. a kind of zero-g aerospace dynamical system in washer characterized by comprising key module, buzzer, is shown indicator light Show module, speed measuring module, over-current detection module, control module, drive module, power plant module and several prominent axis, wherein described press Key module, indicator light, buzzer, display module, speed measuring module and over-current detection module are connect with the control module, described Control module is connect with the drive module, and the drive module is connect with the power plant module；The prominent axis is with two rows contraposition Mode the inside of washing machine is set, and connect with the power plant module；The power plant module is stepper motor, described to test the speed Module is photoelectric encoder, is coaxially disposed with the stepper motor.

2. zero-g aerospace dynamical system in washer as described in claim 1, it is characterised in that: the drive module includes driving Dynamic chip U1, diode D0, diode D1, diode D2, diode D3, diode D4, diode D5, diode D6, two poles Pipe D7, wherein the crus secunda of the driving chip U1 is connect with the cathode of the anode of the diode D0, diode D4 respectively；Institute The third foot for stating driving chip U1 is connect with the cathode of the anode of the diode D1, diode D5 respectively；The driving chip The 13rd foot of U1 is connect with the cathode of the anode of the diode D2, diode D6 respectively；The tenth of the driving chip U1 Four feet are connect with the cathode of the anode of the diode D3, diode D7 respectively.

3. zero-g aerospace dynamical system in washer as claimed in claim 2, it is characterised in that: the over-current detection module packet Operational amplifier U1A, operational amplifier U1B, resistance R10, resistance R11, resistance R12, resistance R15 are included, wherein the resistance R10 One end connect with the first foot of driving chip U1, the other end is connect with the crus secunda of the operational amplifier U1A；The resistance R11 is arranged between the third foot and the 4th foot of the operational amplifier U1A, and the resistance R12 is arranged in the operation amplifier Between the first foot and crus secunda of device U1A；The 4th of the first foot of the operational amplifier U1A and the operational amplifier U1B Foot connection, the resistance R12 are arranged between the crus secunda and third foot of the operational amplifier U1B.

4. zero-g aerospace dynamical system in washer as described in claim 1, it is characterised in that: the control module is DSP2808 chip.

5. zero-g aerospace dynamical system in washer as claimed in claim 2, it is characterised in that: the driving chip U1 is L298N driving chip.

6. zero-g aerospace dynamical system in washer as claimed in claim 3, it is characterised in that: the operational amplifier U1A For LF353D operational amplifier.

7. zero-g aerospace dynamical system in washer as claimed in claim 3, it is characterised in that: the operational amplifier U1B For LM339AD operational amplifier.

8. zero-g aerospace dynamical system in washer as claimed in claim 1, it is characterised in that: the stepper motor Using 45ZY24-25-N type stepper motor.

9. zero-g aerospace dynamical system in washer as described in claim 1, it is characterised in that: the display module is LCD12864 liquid crystal display.